To get accepted or rejected as a historical source, the episode needs a special and thorough investigation which is far beyond the scope of this article. Still, it is worth noting that even the episodes which can be believed the compiler’s own compositions on even more serious grounds, like that retelling about the quarrel of Ingigerd and Jaroslav, turn out to derive from a current tradition. Recent studies of Jaroslav’s policy in the Baltic in the 1010s and 1020s showed his acute interest in the situation there and his eff orts to secure the interests of Rus’. Suffi ce it to mention a few facts. In 1018 or 1019 Jaroslav married his son Ilia to Estrid, the sister of Knut the Great, and in 1019 he himself married Ingigerd, the daughter of the Swedish
However, be the trustworthiness of the retelling about Jaroslav’s participation in Magnus’s return to Norway as it may, the narration about the brothers’ voyage to Rus’ constitutes a special story in itself. A trade voyage to Rus’ was a topic widely spread in kings’ and family sagas as trade connections of Scandinavian countries and Rus’, fi rst and foremost Novgorod, were regular and numerous. Descriptions of these voyages are usually stereotyped. They stress the richness of the Novgorodian market, the profi tability of the trade for Scandinavians, and name the most desirable merchandise, Russian furs, Byzantine cloths, Arabic precious utensils. The narration about the voyage of Karl and Björn lacks all these stereotypes and provides a picture quite diff erent from the usual one.